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Optical Engineering

Dispersion And Gas Flow Effects In The Ring Laser Gyro
Author(s): F. Aronowitz; W. L. Lim
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Paper Abstract

The effects of dispersion and gas flow on the operation of the ring laser gyro are summarized. The theory is shown to predict a dimple in the anomalous dispersion properties of the atomic transition. Experiments were carried out using a 43.4 cm and 21.7 cm visible laser gyro. Scale factor and nullshift results showed consistency and confirmed the existence of the dimple. The peak-peak relative magnitude of the scale factor dimple was found to be approximately 25 x 10-6. Gas flow was varied by unbalancing the discharge currents in the two legs of the laser gyro. A nullshift sensitivity of 0.0066 deg/hr/mamp of unbalance was found. Analysis of the data showed the nullshift sensitivity to velocity flow to be 4.4 deg/hr/cm/sec of velocity unbalance.

Paper Details

Date Published: 1 August 1979
PDF: 5 pages
Opt. Eng. 18(4) doi: 10.1117/12.7972388
Published in: Optical Engineering Volume 18, Issue 4
Show Author Affiliations
F. Aronowitz, Honeywell, Inc. (United States)
W. L. Lim, Honeywell, Inc. (United States)


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